A nuclear-plant leak turns a bus-load of children into murderous atomic zombies with black fingernails.
| Actor | Role |
|---|---|
 Martin ShakarJohn Freemont | John Freemont |
 Gil RogersSheriff Billy Hart | Sheriff Billy Hart |
 Gale GarnettCathy Freemont | Cathy Freemont |
 Shannon BolinMolly | Molly |
 Tracy GriswoldDeputy Harry Timmons | Deputy Harry Timmons |
| JJoy GlaccumSuzie MacKenzie | Suzie MacKenzie |
| JJeptha EvansPaul MacKenzie | Paul MacKenzie |
| CClara EvansJenny Freemont | Jenny Freemont |
| SSarah AlbrightEllen Chandler | Ellen Chandler |
| NNathanael AlbrightTommy Button | Tommy Button |
| JJulie CarrierJanet Shore | Janet Shore |
| EEdward TerryHank | Hank |
 Peter MaloneyFrank | Frank |
 Rita MontoneDee Dee Shore | Dee Dee Shore |